Machine for grinding shafting.



H. W. SNYDER.

MACHINE FOB. GRINDING SHAPTING.

APPLICATION FILED MAIBHZS, 1912.

In 1B .1

3H n v DB 1 7 H M W/ n H. W. SNYDER.

MACHINE FOR GRINDING SHAFTING.

APPLICATION FILED MAR.23, 1912.

1,082,451 Patented Dec.23,1913.

4 SHEETS-SHEET 2.

EIG-E Zuilnesses- Inven fo H. W. SNYDER.

MACHINE FOR GRINDING SHAFTING.

APPLICATION FILED MAK.23, 1912.

Patented Dec. 23, 1913.

Zoitnesses: Inveni'or:

1L W. SNYDER.

MACHINE FOR GRINDING SHAFTING.

APPLICATION FILED MAR. 23, 1912.

1,082,451 I Patented Dec. 23, 1913.

4 SHEETSSHEET 4.

v L'Jilnesses: Invenior:

HARRY W. SNYDER, 0F FORD CITY, PENNSYLVANIA.

MACHINE ron em'nmrre snsr'rms.

-Specification of Letters Patent.

bpplioatiom filed March 23, 1912. Serial No. 685,884.

To all whom it may concern:

Be it known that I, HARRY W. SNYDER, a resident of Ford City, in the county of Armstrong and State of Pennsylvania, have invented a new and useful Improvement in Machines for Grinding Shafting; and I do hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to machines for grinding and polishing rough shafting and tubes and has special reference to such shaftin as is either forged or rolled.

The object of my invention is to provide a cheap, simple and efficient form of machine which will be adapted to be used for both trimming the rough shafting after it has left the hammer or rolls and for then polishing the same so thati't will present a smooth and even surface and will be adapted to be used for the ordinary work.

My invention consists, generally stated, in the novel arrangement, construction and combination of parts as hereinafter more specifically set forth and described and particularly pointed out in the claims.

To enable others skilled in the art to which my invention appertains to construct and use my improved shaft grinding and polishing machine, I will describe the same more fully referring to the accompanying drawings, in whicl1- Figure 1 is a side elevation of the com plete machine. Fig. 2 is a top plan View of the same. Fig. 3 is a cross sectional view on the line 3-3 of Fig. 1. Fig. 4 is a cross sectional view on the line 4--4 of 1 and working in the direction of the arrows. Fig. 5 is a cross sectional view on the line 5 5 of Fig. 1, showing the self adjusting grinding and bufling mechanism. Fig. 6 is a like view on the line 6-6 of Fig. 1, and looking in the direction of the arrows. Fig. 7 is an enlarged detail view of the cutting head.

Like symbols of reference herein indicate like parts in each of the figures of the drawm s.

is illustrated in the drawings the machine is composed of three direct parts, viz: the infeeding apparatus A, the grinding and polishing mechanism B, and the receiving apparatus 0.

The infeeding apparatus A consists of the adjustable feeder 1 and the motor driven driving head 2 and said parts are adapted to travel on rails 3, by their wheels 4 while Patented Dec. 23, 1913.

justable rollers 7 and such rolls are adapted to revolve onan axis parallel with the longitudinal center of the machine. while the adjustment of said rollers is accompl shed by means of a screw 8, said screw belng provided with a right and left hand thread, which operates in the body 9 containing said rollers, and such screw has a hand Wheel 9 at the outer end thereof for turning said screw at a position directly above the rollers 7 and substantially at a point between the same is a roller 10 and such roller operates within a body portion 11 secured to the top of the frame 6. The

roller 10 is adapted to operate or revolve on an axis out of line or oblique to the axis of the rollers 7, and the height of said roller above the rollers 7 is regulated by means of a hand wheel 12. The rollers 7 and 10 may be of any desirable diameter and length but short rollers are preferred for the reason hereinafter explained.

The motor driven driving head 2 consists of a motor 13 which is mounted on a frame 14.- and such motor has a pinion 15- connected to the shaft of the same while a gear 16- mes-hes with said pinion and is rotated thereby. The gear 16 is keyed or held securely by other means to the shaft 17 so that the shaft is thus rotated by the rotation of said gear and said shaft is provided with a pinion 18 on the same, said pinion being se' curely fixed thereto by any suitable means such as a key and said pinion meshes with a large gear 19 secured to the clutch or clamping device 20.

The clamping device 20 is of the ordinary I clutch construction andis adapted to rotate 'in the bearings 21 on the frame l l when the large gear 19 is revolved as described. The clamping device 20 consists of the hollow spindle 22 at the center of the same and a hollow bearing end 23 at the front of the same while at the rear end of said device is a clutch 24 (not detailed) which is adapted the feeding device 2 is a standard 26 which is located in the center of said machine and such standard has a pair of idle rollers 27 'journaled therein in order to prevent any friction when the rod or tube a is being revolved in said machine and said rollers and standard act as a support for said rod or tube to prevent the same from sagging or bending out of shape...

The grinding and polishing mechanism is mounted on a ed plate 28 located on a con crete foundation 29 so as to give firmness and rigidity to the mechanism and thus roduce clean, even and polished rods w ich will be very'uniform in diameter and appearance. At the front of the bed plate 28 1s an upright cutting head which is held in position by the supporting base or bracket 31 of the same being secured to the posts 32 on the bed plate 28 and said cutting head is made in the form of a chuck and has adjustable jaws 33 which are ada ted to be regulated in position by means screws 34 which bear against the outer ends 35 of said jaws. The inner ends 36 of said jaws are slightly concave in order to fit securely against the surface of the rod or tube a as the same passes through the machine, while at one point on the cutting head 30 is a cutting tool 37 said tool being sufiiciently broad on the face 37' of the same to turn down the entire outer surface of said rod or tube. The cutting tool 37 is held firmly in the bracket 38 and is adjusted or regulated in position by means of the screw 39 fitting against the rear end 37 of said tool. The bracket 30 is provided with a round opening 40 in the center of the same through which the rod or tube a is adapted to pass and into which the concave inner ends 36 of the jaws 33 and the face or cutting edge 37' of the cutting tool 37 are adapted to extend in order to hold and trim said rod or tube while the same is passing through said opening.

Immediately in the rear of the cutting head 30 is a tool post 41 which is secured to the bed plate 28 and such post contains a tool 42 which is adapted to extend outward in order that the cutting end 42 of the same may engage with the rod or tube a to trim the same, while said tool is adjusted to the desired position by means-of the hand wheel 43 which is located on the rear end of the screw 43' whichbears against the rear end 44 of the tool 42.

Located next to the tool post 41 is an upright supporting frame 45 which is secured to the bed plate 28 in any suitable manner and said frame is provided with a pair of small rollers 46 which are adapted to operate when the rod or tube a is passing through the same, and said rollers rotate on an axis parallel with the longitudinal center of the machine. 'At a position between the rollers 46 and located above the same is another small roller 47 and such roller is adapted to rotate on an axis oblique to the axis of rotation of the small rollers 46 and the longitudinal center line of the machine. These small rollers 46 are adapted to be regulated in position by means of the screw 48 which fits into the body portions 49 which support the small rollers 46 and said screw is provided at the outer end of the same with a small hand wheel 50.

The screw 48 is so made that it may be journaled in the sides of the frame 45 while.

such screw is provided with a left hand thread 48 and a right hand thread 48 and one of said body portions 49 is located on the right hand thread while the other body portion is located on the left hand thread of said screw. The small roller 47 is regulated in height by means of a hand wheel 51 located above said roller which is journaled in a body portion pended from the top of the frame 45, the purpose of which is hereinafter explained.

At the rear of the supporting frame 45 is another tool post 53, said post being adapted to hold a tool 54, the cutting end 54 of which is adapted to engage with the rod or tube a to give the same a finish cut and thus remove all irregularities from the surface of the same and thus provide it for polishing.

At the rear of the tool post 53 is another supporting frame 45 having the small rollers 46 and the roller 47 thereon as described above. Y

Immediately beyond the supporting frame 45 is a pair of motors 55 and 55 and said motors are mounted one on each side of the bed plate 28 as shown in Fig. 2, so that the emery wheel 56 on the motor 55 will be immediately beyond the rear edge of the sup porting frame 45, while the emery wheel 56 on the motor 55; will be positioned at the outer end of the shaft of the same and immediately in front of another supporting frame 45 while beyond said supporting or hanger 52, which is susframe is another pair of motors having emery wheels 56 and 56' as before described. There may be any desired number of pairs of motors 55 and 55' with supporting frames between the same and the emery wheels 56 and 56 are made finer in grade as they extend toward the rear of the machine so that the rear emery wheelslwill tend simply to buff or polish the rod or tube a as the same passes such wheels.

The motors 55 and- 55 are slidably mounted on the bed plate 28 and have a pin .70 at the outer side of the base while a lug 7l at the outer end of said bed .plate has a screw 72 adapted to operate within the same, and such screw has a reduced end 73 the same diameter as the pin 70 in the motor base and a shoulder 74 is located immediately between the screw and reduced portion. A spiral spring 75 fits over the pin 70 in the motor base and over the reduced portion 73 of the screw, such. spring hearing by its one end against said motor base and by its other end against the shoulder 74 on the screw 72.

At the inner end of the bed plate is a lug 7 6 which has a screw 77 in the same for limiting the inward movement of the motor.

Behind the last supporting frame 45 is a standard 57 which is located in the center of the machine and has a pair of idle rollers 58 journaled in the side'of the same to prevent any friction when the rod or tube a is being revolved through said machine while said rollers and standard act as a support for said 'rod or tube and thus prevent the same from sagging or bending out of shape.

The receiving apparatus 0 consists of the motor driven driving head 59 and the adjustable feeder and said parts are adapted to travel on rails 3 by their wheels 4 while a rail 5 extends above the rail 3 and prevents said wheels from leaving said first named rails and all of said rails are supported in posts 5, which are located in suitable places in front of the grinding mechanism B.

The motor driven driving head 59 consists of a motor 61 which is mounted on a frame 62 and such motor has a pinion 63 connected to the shaft of the same while a gear 64 meshes with said pinion and is rotated thereby.

The gear 64 is keyed or held securely by other means to the shaft so that the shaft is thus rotated by the rotation of said gear and said shaft is provided with a pinion 66 on the same, said pinion being securely fixed thereto by any suitable means such as a key and said pinion meshes with a large gear 67 secured to the clutch or to the clamping device 68. This clamping device 68 is the same as described in connection with the infeeding apparatus A. p

Beyond the motor driven driving head 59 is an adjustable receiver 69 which is adapted to receive and draw the rod or tube a from the machine in the same manner as the adjustable feeder 1 feeds the said material into the machine for finishing the same, and the parts of such receiver are precisely the same as the parts of the adjustable feeder.

The use and operation of my improved grindingand polishing machine is as follows: The pipe or rod a is first fed into the machine at the forward end thereof so that the end of the pipe passes between the rollers 7 and 10 of the adjustable feeder 1 and such feeder is clamped in any desired positic-n in order to prevent the same from moving upon the rails 3 by its wheels 5. During this feeding process the hand wheel 9 is loosened so that the forward end of the pipe may pass into the hollow spindle 22 and thence into the chuck 24 where it is securely clamped at about its center by means of the operator grasping and throwing the handle of the lever 25.

The motor 13 furnishes the power for driving the chuck 24 and the spindle 22 so that when such motor is set in motion the pinion 1.5 on the shaft of such motor will mesh with the gear 16 keyed onto theshaft 17. As the shaft 17 thus rotated by this connection the pinion 18 secured to such shaft will also be rotated and will in turn rotate the large gear 19 which is secured to the spindle 22 and meshes with the pinion 18.

The motor driven driving head 2 is adapted to travel by its wheels 4 on the rails 3 and such travel is caused by the turning of the spindle 22 while as such rotation occurs the roller 10 in the adjustable feeder 1 will move the rod or tube a forward on account of its being adapted to rotate on an axis oblique to the longitudinal movement of such rod or tube, since the rod or tube a is fastened securely in the chuck 24 the pro pelling forward of such rod or tube by the roller 10 in the adjustable feeder 1 will cause the whole driving head 2 to be moved along on the rails 3 by its wheels 4. The forward end of the rod or tube a now passes into the cutting head 30 and is guided through the frame by means of the adjustable jaws 33, which are regulated in position by means of the screws 34 which bear against the outer ends of the same, so that the space between the inner concave ends 36 of said jaws is just suflicient to allow the said rod or tube to pass between the'same. As the rod or tube a passes through the cutting head 30 the cutting tool 37 which is adjusted by means of the screw 39 fitting against the outer end 37 of said tool, bears against the said rod or tube and cuts or trims the same to about 1/32 of an inch depth in order to remove the rough outer surface of any irregularities on the same and thus obtain a uniform surface throughout its entire length.

The rod passes from the cutting head 30 through the same and past the tool part 41 which is adapted to be so positioned that the tool 42 of the same cuts about 1/64 of an inch from the surface of the rod or tube a to further finish the same after which the rod passes between the rollers 46 and 47 in the supporting frame 45, which rolls are of the same construction as those in the infeeding mechanism having the upper roller 47 positioned and rotatable on an axis oblique to the longitudinal movement of the rod or bar so that as such rod turns or rotates the oblique roller 47 will propel the same forward. v

At the rear of the supporting frame 45 the rod or tube 0: passes the tool post 53 which is adapted to take another 1/32 of an inch cut from the same by means of the tool engage with said rod or tube as the same passes through the machine and past said post. The rod or tube a then passes throu h another supporting frame 53 such as escribed and said rod or tube then engages with the emery wheel 56 which is secured to the shaft of the motor 55 and rotates in an opposite direction from the direction of the rotation of the rod or tube. The emery wheel 56' on the motor 557 engages next with the rod or tube a and such emery wheel may be regulated in position in a manner identical with the emery wheel 56 on the motor 55 while the emery wheel 56 is of a finer grade than the wheel 56. The motors and emery wheels are located in pairs and between each of the pairs of motors is a supporting frame such as described in order to properly support the rod or tube a and also to insure proper and regular propulsion of the same through the machine.

Immediately beyond the last supporting frame is a standard 57 which supports the rod or tube a on a pair of idle rollers 58 and such rod or tube now enters the second motor driven driving head 59 and is clamped in the chuck 68 after about half of such rod has passed through the same and the forward end of the rod enters the receiving mechanism which has upper and lower rollers with the upper rollers adapted to rotate on an axis oblique to the longitudinal motion of the rod or. tube so that asthe driving head rotatesthe same the oblique roller will cause such rod or tube to be propelled entirely through the machine. By this time the motor driven driving head 2 will have come to a position near to the cutting head 30 so the lever 25 is now reversed and chuck disengaged from the rod or tube a and said drivmg head is now pushed backward along the tracks or rails 3 by its wheels 4. to the post 5 so that another rod or tube may be started into said machine as described.

It will thus be seen that with my improved machine for grinding and finishing rough shafting,'pipes, tubes, etc., the same may be completed with one operation and the machine is so constructed that one man may operate the same with ease and the shafting, etc., can be passed through the same practically continuous. The difierence in grade of the wheels connected to the motors for grinding and polishing the shafting, tubes, etc., will insure the perfectly even polish so much desired while the means of feeding and supporting the same will insure a perfect cut at each of the cutting tools, which is so essential to a machine of this character.

The machine may be regulated by means of the hand wheels, screws, etc., to receive any size of material and the whole machine when assembled and set up will be of a very compact nature and take up very little room for its successful operation.

Various changes in the design, construction and operation of my improved machine for grinding and polishing rough shafting may be resorted to without departing from the spirit of the invention or sacrificing any of its merits.

What I claim as my invention and desire to secure by Letters-Patent is- 1. A machine for grinding and finishing rough shafting comprising a traveling head for clamping the shafting thereto to rotate the same, a feeding mechanism in front of said head for propelling the same and shafting, means in the rear of said head for grinding and finishing said shafting, and means beyond said first named means for receiving said shafting.

2. A machine for grinding and finishing rough shafting comprising a traveling head for rotating the shafting, feeding mechanism in front of said head for propelling the same and shafting, means in the rear of said head for grinding and finishing said shafting, a traveling head beyond said means for receiving and rotating said shaftmg, and a discharging mechanism beyond said last named head for propelling said shafting.

3. A machine for grinding and finishing rough shafting comprising a traveling head for clamping the shafting thereto to rotate the same, a feeding mechanism in front of said head for propelling the same and shafting, means in the rear of said head for grinding and finishing said shafting, a travellng head beyond said means for receiving and rotating said shafting, and a discharging mechanism beyond said last named head for propelling said shafting.

4:. A machine for grinding and finishing rough shafting comprising a traveling head for rotating the shafting, feeding mechanism in front of said head for propelling in the same and shafting, means in the rear of sald head for grinding and finishing said shafting, a power driven traveling head beyond saidmeans for receiving and rotating sa d shaft ng, and a dischargingmechanism beyond said lastnamedhead for propelling sald shafting.

5. A machine for grinding and finishing rough shafting comprising a power driven travelmg head for rotating the shafting, a feeding mechanism in front of said head for propelling the same and shafting, means in the rear of said head for grinding and finishmg said shafting, a power driven traveling head beyond said means for receiving and rotating said shafting, and a discharging mechanism beyond said last named head for propelling said shafting.

6. A machine for grinding and finishing rough shafting comprising a traveling head said last named head for propelling said 10 for clamping the shafting thereto to rotate shafting. i

the same, a feeding mechanism in front of In testimony whereof, I the said HARRY said head for propelling the same and shafft- W. SNYDER have hereunto set my hand.

ing, means in the rear of said head or grinding and finishing said shafting, a HARRY SNYDER power driven traveling head beyond said Witnesses: means for receiving and rotating said shaft- T. B. HUMPHRIES, ing, and a discharging mechanism beyond J. N. (300102. 

